added init files

backend/src/server.ts

@@ -0,0 +1,44 @@
+// backend/src/server.ts
+import express from 'express';
+import cors from 'cors';
+import { db } from './services/databaseService.js';
+import { seedData } from './scripts/seedData.js';
+import authRoutes from './routes/auth.js';
+import shiftTemplateRoutes from './routes/shiftTemplates.js';
+import shiftPlanRoutes from './routes/shiftPlans.js';
+
+const app = express();
+const PORT = process.env.PORT || 3001;
+
+// Middleware
+app.use(cors());
+app.use(express.json());
+
+// Routes
+app.use('/api/auth', authRoutes);
+app.use('/api/shift-templates', shiftTemplateRoutes);
+app.use('/api/shift-plans', shiftPlanRoutes);
+
+// Health check
+app.get('/api/health', (req, res) => {
+  res.json({ status: 'OK', timestamp: new Date().toISOString() });
+});
+
+// Error handling
+app.use((err: any, req: express.Request, res: express.Response, next: express.NextFunction) => {
+  console.error('Unhandled error:', err);
+  res.status(500).json({ error: 'Internal server error' });
+});
+
+// Start server
+app.listen(PORT, async () => {
+  console.log(`Server running on port ${PORT}`);
+  await seedData();
+});
+
+// Graceful shutdown
+process.on('SIGINT', async () => {
+  console.log('Shutting down gracefully...');
+  await db.close();
+  process.exit(0);
+});